Grayscale mask plate, color film substrate, related fabricating methods, and display device
US9372400B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 29, 2014 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Sep 29, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133516
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A grayscale mask plate and method of fabricating the same, a color film substrate and method of fabricating the same, and a display device are disclosed. The grayscale mask plate comprises a transparent substrate and a light blocking layer on the transparent substrate. The light blocking layer comprises an exposure region with an optical translucent film which has a light blocking ratio decreasing gradually or stepwise from a center of the optical translucent film to an edge of the optical translucent film. As a result, the intensity of light transmitted through the exposure region is uniform, such that a post spacer fabricated by the grayscale mask plate has a relatively flat top face. Thus, the post spacer exhibits a linear variation in its hardness under the action of an external force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.